Drawing board



FIG. 1 is a front perspective view of a drawing board in accordance with my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a left-side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings are included to show unclaimed lines on an entirely claimed surface. 

CLAIM I claim the ornamental design for a drawing board, as shown and described. 